Carbureter.



A. WINTO N.

OARBURETER.

APPLICATION FILED APR. 9, 1907. 928,828. Patented July 20, 1909. 2 SHEETS-SHEET 1.

Witneooao A. WINTON.

GARBURETER.

APPLICATION FILED APR. 9, 1907.

928,828, Patented July 20, 1909.

2 SHEETS-SHEET 2.

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@QIZ 5% ALEXANDER WINTON, OF CLEVELAND, OHIO.

(JARB'UBIETERM Specification 01 Letters Patent.

Patented July 20, 1909.

Application filed Apri19, 1907. Serial No. 367,215.

To all whom it may concern:

Be it known that I, ALEXANDER WINTON,

a citizen of the United States, residing at.

,carbureters, and is for use in connection withexplosive engines to furnish a uniform explosive mixture therefor, irrespective of the speed or requirements of the motor.

The present improvementrelates to the class of carbureters which is made the subject-matter of a co-pending application of myself and Harold B. Anderson, Serial Number 323,117 in which the slowly moving volumes of air are subjected to surface carburizati'on and the rapidly moving volumes of air subjected to spray.carburization.-

The present improvement pertains to automatic means for controlling the, size of the air passage at the point of gasolene entrance therein in proportion to the volume and rapidity of the air passing through the air passages to meet the requirements of the motor.

In carrying out the present improvement, the air passage-way is automatically restricted at the point of fluid exposure for surface carburization of slowly moving volumes of air, and is enlarged automatically in proportion to the volume and rapidity of air passing through the air passage to the motor, whereby the slowly moving volumes of air are caused to travel in contact with and close to the exposed bodv of fluid for surface carburization. I

In the accompanying drawings, Figure 1, is a sectional view of a carburetor embody ing my invention, taken longitudinally through the air passage-ways. Fig. 2, is asectional view on the line 22, and looking in the direction indicated by arrow.

. In carrying out my present improvement a chamber 1 is provided into which the gasolene flows, and in which it is maintained ata predetermined level. This maybe done in various ways, and the form of mechanism here shown for accomplishingthis is the well known float and valve construction. It

consists of a suitable float 2 concentrically arranged in the chamber 1, and a valve 3 which controls the inlet opening 4. An intermediately pivoted lever 5 has one end adapted to operate the valve 3 and the other end in engagement with the float 2. The operation of this mechanism for maintaininga fluid at a predetermined level is so well known" and understood, that further description thereof is unnecessary.

Extending across the top of the chamber 1 is an air passage 6 through which the air passes to be carbu'reted on its Way to the engine. The bottom 7 ofthis air passage 6 is located in a plane slightly below themaintained oil level of the chamber 1, whereby oil normally flows by gravity into the air passage through a suitable opening 8. This openin 8' is controlled by means of a suitable va ve 9 which controls the volume and. rapidity of the passage of the fluid from the chamber 1 to the air passage 6.

It is found in this type of carbureter that the best results are'obtained by causing the slowly moving volumes of air to travel close to and against the exposed body of fluid, and this may be accomplished by restricting automatically theair passage at or substantially-at the point of oil entrance to the air passage-way, but this air passage-way should be automatically enlarged in proportion-to the volume of an assing through it to meet the demands of t e engine at its various speeds.

The present improvement is designed to automatically vary the size of the passageway at the point of fluid exposure in proportion to the volumes of air that are being carbureted.

The automatic means here shown consists in providingi a movable gate shutter or plunger 10 a apted to move toward the poig t of fluid exposure, as shown in dotted lines in Fig. 1. This gate or shutter has its stem 11 passin longitudinally through a cylinder 12, an within the cylinder is a piston 13 which is connected to the stem 11in any suitable manner, so that the stem and piston move together. Secured within the cylinder 12 at a point outside of the iston is a suitable web orplu 14 which Wlll limit the outward or upward movement of the piston 13, and,the stem projects through this web 14 and moves freely therein. The projecting end of the stem is screw-threaded and carries an adjustable nut 15. Surrounding the stem and between the nut and the web is a suit- 7 through the passage 6 b l a verylow speeds of the motor. The opening "of the throttle will permit the demands of the motor to be supplied, and thus relieve the to pass through the passage 6 by the throt:

' the air passage-way and the cylinder 12 at 4 cated between the point of carburization and the engine, so that when the throttle is moved the passage 6 and past the pointof .carburiza- "ing volumes of air at a constant velocity are found to travel in the upper portion of the passage at the point of carburiz'ation is autothe flow of mixture thereto, a suction will be tion for the restricting of the passage-way able spiral spring 16 'whichserves to hold Y the piston, the stem and the shutter or gate X 10 normally outward; A suitable passageway 17 establishes communication between its inner or lowe end. Located in the air passage 6 isa suitable throttle 18 by means, of which the en ine is controlled, and which serves to contro the volume of air which is permitted to pass through the air passage and pass the exposed fluid or point of carburization, and also controls the flow of the explosive mixtureto the engine, and in this way controls the engine. The throttle is 10- to close or partially close the passage-way 6 it reduces t e volume of air passing through tion. W1th the throttle located 'as shown the velocit-y'of the volumes of air when the throttle is partially closed, is constant at the point of carburization, and unless some means is provided for restricting the airpassage at the point of. carburization, these slowly-movair passage, and surface carburization is dimimshed. By the mechanism here described, and one form of which is illustrated, the air matical'ly varied in the following way As is well known, explosive engines draw their explosive mixture through the carbureter, and thuscause a suction; When the throttle 18' is turnedin a direction to out be caused through the pipe 17 drawing air from the cylinder 12 and thus reducing the pressure from the inner side of the piston 13, thus permitting the atmospheric pressure to act on the piston to drive it inward and downward against the tension of the spring 16, and this serves to move the gate or shut-' tertlO in the direction indicated in dotted lines, Fi 1. V The; withdrawal of air from the cylin er 12 has a tendency to create within the cylinder what is commonly referred to as a vacuum, and vthis tendency to move the piston 13 is increased or diminished in 7 proportion to the cutting ofl" of the air the throttle 18. When the throttle 18 is a 0st closed there will be a strong suction through the pipe 17, andthe shutter10 will be caused to reach the limit of its closing movement for the tendency to vacuum in the cylinder 12 in proportion to the-volumes 'of air permitted tle 18. y

- I do not make any claim in this applicaat the point of fluid exposure, for this is the broad subject-matter of a co-pending. joint application of myself and Harold B. Anderson, but I do claim the distinguishing characteristics of the. present invention as compared with the mechanism and mode of operation of the abovementioned joint application. 2

Having thus described my invention, what I claim and desire to secure by Letters Patent, is

-1. A carbureter having a ,carbureting passage provided with an oil inlet, a shutter within the passage-way located to direct the passing air against said oil inlet, a chamber, a pressure actuated member within the chamber operatively connected with the shutter, the said chamber in communication.

with the said carbureting passage for the purpose described, and a throttle in the carbureting passage at a point-between the shutter and said communication with the carbureting passage.

the shutter, means for holding the piston and thereby the shutter normally in a withdrawn position, a communication between the air passage and the cylinder below the piston and manually actuated means for contro ling the air passage through said air passa e. a

3. carbureter of thet-y e described havi an air passage provi ed with an oil in et, a mem er for restricting the said air passage only at the .oil'inlet to deflect the air against'the oil, yielding means holding the said member normally 111 an unrestricting position, and a pressure-actuated means for moving the said restricting member in the op -osite direction, for'the. purpose described 4. A carbureter of. the type described hav ing an air passage'provided with an oil inlet, a member or restrlcting the air passage only at the oil inlet to deflect the air against the oil, an adjustable yielding meansfor holding the said member in its unrestricting' position, and a pressure-actuated mechamsm controlled bythe passage of the air throu h the air passagevand adapted to move t restricting member in opposition to the said yielding means.

5. .In a carbureter having an air assage provided with an oil-inlet in its ttom,

means for maintaining a body of oil in the said air passage, a chamber, a pressure uptuated member within the chamber, said at the said body chamber in communication with the air passage, a movable shutter connected with andactuated by said pressure actuated member, said shutter located in the air passage about of oil, and means independent of theshutter for controlling the passage of air through said air passage.

ALEXANDER WINTON.

Witnesses HAROLD B. ANDERSON, 

